A part, assembly, or system identified as essential to weapon system performance or operation to preserve life and safety of personnel
NSN 5925-01-422-0431
NSN 5910-01-399-1592
NSN 6150-00-951-3420
NSN 5915-01-496-8425
NSN 6685-01-286-4824
NSN 6110-01-300-8127
NSN 5905-00-223-3231
NSN 4140-00-905-8331
NSN 7035-01-508-5064
NSN 6240-01-359-2721
NSN 6620-01-421-6949
NSN 6645-01-369-4371